Q. Cut-off governing of steam engines is a method of controlling the engine output by varying

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Q. In a boiler, feed water supplied per hour is 205 kg while coal fired per hour is 23 kg. The net enthalpy rise per kg of water is 145 kJ. If the calorific valve of the coal is 2050 kJ/kg, then the boiler efficiency will be

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Q. A safety valve mainly used with locomotive and marine boilers is

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Q. Which of the following boiler is best suited to meet the fluctuating demand of steam ?

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Q. Which of the following statement is correct ?

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Q. The draught produced by a steam jet issuing from a nozzle placed in the ashpit under the fire grate of the furnace is called

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Q. Which of the following statement is wrong ?

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Q. The function of a crosshead is to guide motion of the __________ and to prevent it from bending.

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Q. The cylinder dimensions of a compound engine may be designed on the basis of

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Q. The function of a piston rod is

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Q. A single acting steam engine produces __________ power than that of double acting steam engine.

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Q. The pressure of steam in the engine cylinder at the beginning of the stroke is __________ the boiler pressure.

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Q. The function of a flywheel is

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Q. The rate of steam produced in Benson boiler is

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Q. In natural circulation steam boilers, the circulation of water is by convection currents which are set up during the heating of water.

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Q. The object of producing draught in a boiler is

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Q. In a glass tube type water indicator for a boiler, one end of the tube is connected to water space and the other end is connected to

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Q. In water tube boilers

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Q. Which of the following statement is wrong ?

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Q. A grate, in a boiler, is a place in the combustion chamber upon which fuel (wood or coal) is burnt.

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